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Ultrasound and computed tomography of the iliosacral lymphatic centre in dogs with anal sac gland carcinoma
Author(s) -
Pollard R. E.,
Fuller M. C.,
Steffey M. A.
Publication year - 2017
Publication title -
veterinary and comparative oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 34
eISSN - 1476-5829
pISSN - 1476-5810
DOI - 10.1111/vco.12160
Subject(s) - medicine , ultrasound , abdomen , radiology , computed tomography , lymph , nuclear medicine , carcinoma , contrast enhanced ultrasound , anatomy , pathology
Abstract In this prospective study, we hypothesized that computed tomography ( CT ) would identify more normal and abnormal iliosacral lymph nodes ( LNs ) than abdominal ultrasound in dogs with anal sac gland carcinoma ( ASGC ). Twelve client‐owned dogs with ASGC but without distant metastasis were enrolled. Abdominal ultrasound and contrast‐enhanced CT scans of the abdomen were obtained. Iliosacral LNs were counted and assessed for location, laterality and size. Significantly ( P < 0.00001) more iliosacral LNs were identified with CT (61) than ultrasound (30), including significantly ( P = 0.00012) more medial iliac LNs with CT (33) than ultrasound (19). There was no difference in number of internal iliac LNs identified with CT versus ultrasound. Significantly ( P = 0.000061) more sacral LNs were identified with CT (15) than ultrasound (0). Ultrasound identified slightly more (7) abnormal iliosacral LNs than CT (5). Contrast CT was able to identify more normal but not more abnormal LN s than ultrasound.